JPS6073235A - Decentralization type control device for air-conditioning and refrigerating device - Google Patents
Decentralization type control device for air-conditioning and refrigerating deviceInfo
- Publication number
- JPS6073235A JPS6073235A JP58183828A JP18382883A JPS6073235A JP S6073235 A JPS6073235 A JP S6073235A JP 58183828 A JP58183828 A JP 58183828A JP 18382883 A JP18382883 A JP 18382883A JP S6073235 A JPS6073235 A JP S6073235A
- Authority
- JP
- Japan
- Prior art keywords
- control device
- central control
- control unit
- central
- terminal control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1902—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value
- G05D23/1905—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value associated with tele control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Air Conditioning Control Device (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、分散設置された複数台の空調装置およびそ
の関連装置を集中制御する空調冷凍装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an air conditioning and refrigeration system that centrally controls a plurality of distributed air conditioners and their related devices.
従来、この種の装置として第１図に示すものがあった。 Conventionally, there has been a device of this type as shown in FIG.
この第１図において、１は中央制御装置、２ ａ Ｔ
２ ｂ Ｔ ２ ｃ 、 ：ｉｊ ｄ ＋ ２ ｅは空
調装置や冷凍装置を制御する端末制御装置、３は中央制
御装置１のダウン時、中央制御装置１の代替制御をする
バックアップ用制御装置、４は中央制御装置１、バンク
アンプ用制御装置３および各端末制御装置２ａ、２ｂ、
２ｃ、２ｄ、２ａ間の制御情報を伝達する伝送線、５ａ
、５ｂ、５ｃ、５ｄ、５ｅは各端末制御装置と結合した
負荷であシ、空調装置や冷凍装置である。In this FIG. 1, 1 is a central control unit, 2 a T
2 b T 2 c , :ij d + 2 e is a terminal control device that controls an air conditioner or a refrigeration device, 3 is a backup control device that performs alternative control of the central control device 1 when the central control device 1 is down, 4 are a central control device 1, a bank amplifier control device 3, and each terminal control device 2a, 2b,
Transmission line 5a for transmitting control information between 2c, 2d, and 2a
, 5b, 5c, 5d, and 5e are loads connected to each terminal control device, such as an air conditioner or a refrigeration device.
次に動作について説明する。通常時は各端末制御装置２
’ 、２ ｂ、２ ｃ ＋ ２ ｄ 、 ２ ｅは各
負荷５ａ〜５ｅを制御するための情報、空調、冷凍温度
ないしは圧力などのアナログ情報と、運転状態や異常状
態などのディジタル情報を入力し、伝送線４を介して中
央制御装置１へ伝送する。Next, the operation will be explained. Normally, each terminal control device 2
', 2b, 2c + 2d, 2e input information for controlling each load 5a to 5e, analog information such as air conditioning, freezing temperature or pressure, and digital information such as operating status and abnormal status. , to the central controller 1 via the transmission line 4.
中央制御装置１はキーボードなどの入力によシ、各負荷
５３〜５ｅを制御するための情報、負荷の種類や制御モ
ード、運転順位などの登録、情報。The central control device 1 registers and registers information for controlling each load 53 to 5e, load type, control mode, operating order, etc. by inputting information from a keyboard or the like.
温度調節、タイマなどの設定情報運転、停止などの指令
情報を入力し、各端末制御装置２ａ〜２ｅから送られて
きた入力情報と合わせて、温度制御。Temperature control is performed by inputting setting information for temperature adjustment, timer, etc., command information for operation, stop, etc., and combining this with input information sent from each terminal control device 2a to 2e.
タイマ制御などの演算を行なう。Performs calculations such as timer control.
演算結果は負荷５ａ〜５ｅを制御する出力情報として、
伝送線４を介して各端末制御装置２ａ〜２ｅへ送る。The calculation results are used as output information to control the loads 5a to 5e.
It is sent via the transmission line 4 to each terminal control device 2a to 2e.
谷端末制御装置２ａ〜２ｅでは、上記出力情報を入力し
、各負荷を制御できる内容に変換した後（たとえばリレ
ー出力として）各負荷に出力し制御する。The valley terminal control devices 2a to 2e input the above output information, convert it into content that can control each load (for example, as a relay output), and then output it to each load to control it.
ところが、中央制御装置１が何らかの原因でダウンする
と（停電、故障、暴走など）、各端末制御装置２ａ〜２
０は演算制御結果す々わち、負荷の出力制御情報がなく
なるため、負荷を制御することができ々くな９、システ
ム全体がダウンすることになる。However, if the central control device 1 goes down for some reason (power outage, failure, runaway, etc.), each terminal control device 2a to 2
0 means the calculation control result, that is, the load output control information is lost, so the load cannot be controlled 9, and the entire system goes down.
そこで、中央制御装置１のダウン時はバックアップ用制
御装置３がこれを監視し、中央制御装置１の代替制御を
行ない、外部へ中央制御装置ダウンの警報を出すことに
より、システム制御を継続させる。Therefore, when the central control device 1 is down, the backup control device 3 monitors it, performs alternative control of the central control device 1, and issues an alarm to the outside that the central control device is down, thereby allowing system control to continue.
従来の分散形制御装置は以上のように中央制御装置１へ
の依存度が高いため、中央制御装置１の何らかのダウン
によシステム制御の夕゛ウンにつながる恐れがあるため
、システムの運転を継続させるためには、中央制御装置
と同規模のバンクアップ用制御装置を備える必要があシ
、制御装置管全体のコストが高くつくという欠点があっ
た。Conventional distributed control devices are highly dependent on the central control device 1 as described above, so if the central control device 1 goes down for some reason, there is a risk that system control will be disrupted, so the system must continue to operate. In order to do this, it is necessary to provide a bank-up control device of the same size as the central control device, which has the drawback of increasing the cost of the entire control device.
この発明は、上記のような従来のものの欠点を除去する
ためになされたもので、各端末制御装置に中央制御装置
の演算制御結果と中央制御装置の入力機能、入力状態の
記憶機能の大部分および中央制御装置の監視機能を加え
ることによｐ１中央制御装置のダウン時は、バンクアッ
プ用制御装置なしで自動的に各端末制御装置が単独で運
転を継続することができる分散形制御装置を提案するも
のである。This invention was made in order to eliminate the drawbacks of the conventional ones as described above, and each terminal control device stores most of the arithmetic control results of the central control device, the input function of the central control device, and the storage function of the input state. By adding a monitoring function for the central control unit, we have created a distributed control unit that allows each terminal control unit to automatically continue operating independently without the need for a bank-up control unit when the P1 central control unit is down. This is a proposal.
以下、この発明の空調冷凍装置の分数形制御装置の実施
例について図面に基づき説明する。第２図はその一実施
例の構成を示すブロック図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a fractional type control device for an air conditioning refrigeration system according to the present invention will be described based on the drawings. FIG. 2 is a block diagram showing the configuration of one embodiment.
第２図において、１は中央制御装置、２ａ１２ｂ＋２ｃ
、２ｄ、２ｅは空調装置や冷凍装置を制御する端末制御
装置、４は中央制御装置１と各端末制御装置２ａ、２ｂ
、２ｃ、２ｄ−，２ｃ間の制御情報を伝達する伝送線、
５ ａ ＋ ５ ｂ 、５ Ｃ＋ ５ ｄ＋５ｅは各端
末制御装置と結合した負荷であシ、空調装置や冷凍装置
などである。In Fig. 2, 1 is the central control unit, 2a12b+2c
, 2d, 2e are terminal control devices that control the air conditioner and the refrigeration device, and 4 is the central control device 1 and each terminal control device 2a, 2b.
, 2c, 2d-, a transmission line for transmitting control information between 2c,
5a+5b, 5C+5d+5e are loads connected to each terminal control device, such as an air conditioner or a refrigeration device.
この第２図を第１図と比較しても明らかなように、第２
図では、第１図におけるバンクアップ用制御装置３が省
略されている。As is clear from comparing this Figure 2 with Figure 1,
In the figure, the bank-up control device 3 in FIG. 1 is omitted.
また、第３図は端末制御装置２の内部構成を表わすブロ
ック図であ夛、第２図の各端末制御装置２８〜２ｅはそ
れぞれ同一構成をなし、第２図ではこれらを代表して符
号２で示されている。Further, FIG. 3 is a block diagram showing the internal configuration of the terminal control device 2. Each of the terminal control devices 28 to 2e in FIG. 2 has the same configuration, and in FIG. It is shown in
この第３図における６は中央演算装置であるｃｐｕ、
７は中央制御装置１からの指令設定情報や端末制御装置
向らの指令設定情報および温度圧力などの情報を記憶す
るＲＡＭ、８はＲＡＭγの情報をもとに温度制御などの
演算プログラムをもつＲＯＭであシ、これは中央演算装
置６とバス１５で接続されている。6 in FIG. 3 is a central processing unit (cpu),
7 is a RAM that stores command setting information from the central control device 1, command setting information directed to the terminal control device, and information such as temperature and pressure, and 8 is a ROM that stores calculation programs such as temperature control based on the information of RAM γ. Yes, this is connected to the central processing unit 6 by a bus 15.
バス１５には、中央制御装置１との情報入出力のインタ
ーフェイス９であり、中央制御装置１との情報を交換す
る変復調装置１０を介して伝送線４に接続されている。The bus 15 is connected to the transmission line 4 via a modulation/demodulation device 10 which is an interface 9 for inputting and outputting information with the central control device 1 and exchanges information with the central control device 1.
捷た、バス１５には、指令、設定情報を入力するキーボ
ードインターフェイス１１、温度や圧力などのアナログ
データを入力し、ディジタル値に変換するへ旬変換器１
２、中央制御装置１の異常検出時、外部へ警報を出力す
る出力インターフェイス１３、対象である空調装置や冷
凍装置の制御を行なう入出力インターフェイス１４など
が接続されている。The bus 15 includes a keyboard interface 11 for inputting commands and setting information, and a converter 1 for inputting analog data such as temperature and pressure and converting it into digital values.
2. An output interface 13 that outputs an alarm to the outside when an abnormality is detected in the central control device 1, an input/output interface 14 that controls the target air conditioner or refrigeration device, etc. are connected.
バス１５は上記からも明らかなように、中央演算装置６
、ＲＡＭ７、ＲＯＭ８、インターフェイス９、変復調装
置１０、キーボードインターフェイス１１、Ａ／／Ｄ変
換器１２、出力インター７エイヌ１３、入出力インター
フェイス１４間のデータ。As is clear from the above, the bus 15 is connected to the central processing unit 6.
, RAM 7, ROM 8, interface 9, modem 10, keyboard interface 11, A//D converter 12, output interface 13, and input/output interface 14.
アドレス、コントロール信号を伝送するようになってい
る。It is designed to transmit address and control signals.
次に、以上のように構成されたこの発明の空調冷保装置
の分散形制御装置の動作について述べる。Next, the operation of the distributed control device for an air conditioning/refrigerating device of the present invention configured as described above will be described.
中央制御装置１は各端末制御装置２ａ〜２ｅとサイクリ
ック方式で交信する。つ−ｔｐ、ｉ未制御装置２ａと中
央制御装置１と交信、端末制御装置２ｂと中央制御装置
１と交信、端末制御装置２ｃと中央制御装置と（１と交
信、端末制御架＠、 ２ｄと中央制御装置１と交信、端
末制御装置２ｅと中央制御装置１と父信、端末制御装置
２ａと中央制御装置１と交信という順序である。The central control device 1 communicates with each terminal control device 2a to 2e in a cyclic manner. -tp,i Communication between uncontrolled device 2a and central control device 1, communication between terminal control device 2b and central control device 1, communication between terminal control device 2c and central control device (1), and communication with terminal control rack@, 2d The order is communication with the central control device 1, communication with the terminal control device 2e and the central control device 1, and communication with the terminal control device 2a and the central control device 1.
したがって、一つの端末制御装置からみると、一定時間
毎に中央制御装置１と交信する。Therefore, from the perspective of one terminal control device, it communicates with the central control device 1 at regular intervals.
次に、端末制御装置２の動作を第４図のフローチャート
で説明する。まず、中央制御装置１がら情報があるかな
いか、インターフェイス９、変復調装置１０にてチェッ
クする（ステップ１６からステップ１７）。Next, the operation of the terminal control device 2 will be explained using the flowchart shown in FIG. First, the interface 9 and the modulation/demodulation device 10 check whether there is information from the central control device 1 (steps 16 to 17).
情報が有る場合はステップ１８へ、ない場合はステップ
２４へ行く。If there is information, go to step 18; otherwise, go to step 24.
情報が有る場合、タイマをクリアした後（ステップ１８
）、それをインターフェイス９、変復調装置１０よシ入
力し、ＲＡＭγヘスドアする（ステップ１９）。この情
報内容は、負荷を制御するための指令、設定情報である
。If there is information, after clearing the timer (step 18
), is input to the interface 9 and the modem 10, and is stored in the RAM γ (step 19). This information content is commands and setting information for controlling the load.
次に中央制御装置１でモニタできるための情報。Next, information that can be monitored by the central control device 1.
負荷の運転状態、アナログ情報などをＲＡＭ’Ｉよシ取
り出し、インターフェイス９、変復調装＋１１０から中
央制御装置１へ伝送する（ステップ２０）。The operating status of the load, analog information, etc. are retrieved from the RAM'I and transmitted from the interface 9 and modem +110 to the central controller 1 (step 20).
次に、空調、冷凍温度ないしは圧力などのアナログ情報
を〜巾変換器１２よｐ人カし、ＲＡＭγヘスドアする（
ステップ２１）。Next, analog information such as air conditioning, freezing temperature or pressure is transferred to the width converter 12 and stored in RAMγ (
Step 21).
次に、ＲＡＭγ内の制御情報（上記指令設定情報、アナ
ログ情報）によ５、ＲＯＭ８にストアされた流度制御、
タイマ制御などのプログラムによシ演算制御する（ステ
ップ２２）。Next, according to the control information in RAM γ (the above command setting information, analog information), the flow rate control stored in ROM 8,
The calculations are controlled by a program such as timer control (step 22).
次に、この演算制御結果（もとづき、負荷である空調、
冷凍装置へ入出力インターフェイス１４によシ出力制御
する（ステップ２３〕。Next, this calculation control result (based on the air conditioner, which is the load),
The output to the refrigeration system is controlled by the input/output interface 14 (step 23).
中央制御装置１からの情報がない場合は、ステップ２４
へ行き、タイマカウントが開始されているか判断する（
ステップ２４）。If there is no information from the central controller 1, step 24
Go to and determine if the timer count has started (
Step 24).
タイマカウントが開始されていれば、引き続いて継続（
ステップ２５）、開始されていなければ、タイマ開始処
理を行々い（ステップ２６）、ステップ２１へ続く。If the timer count has started, it continues (
Step 25), if not started, performs timer start processing (step 26) and continues to step 21.
このステップ２γでは、タイマが中央１ｊ制御装圓から
の情報が入る周期以上になっているかチェックする。タ
イマがこの周期以上経過しておれば（タイマ、カウント
アツプ）、中央制御装置ダウンと判断し、タイマクリア
した後（ステップ２８）、キーボードインターフェイス
１１よｐ指令設定情報を入力し、ＲＡＭ７ヘストアする
（ステップ２９）。In this step 2γ, it is checked whether the timer has exceeded the period at which information from the central control unit 1j is received. If the timer has elapsed for more than this period (timer, count up), it is determined that the central control unit is down, and after clearing the timer (step 28), input the p command setting information through the keyboard interface 11 and store it in the RAM 7 ( Step 29).
次に、出力インターフェイス１３よシ外部・へ中央制御
装置タ功ン管報を出しくステップ３０）、ステップ２１
へ戻る。タイマがカウントアンプしなければ、中央制御
装置ダウンの処理（ステップ２８．２９．３０）は行な
わず、ステップ２１へ戻る。Next, step 30) outputs control information from the central controller to the outside through the output interface 13, and step 21.
Return to If the timer does not count up, the central control unit down process (steps 28, 29, 30) is not performed and the process returns to step 21.
ところで、ステップ１９、ステップ２９の指令。By the way, the instructions in steps 19 and 29.
設定などの情報入力ｉｌ″ｊ、事前の状態と変化なけれ
ば、ＲＡＭγへのストアは省略できる。If information input il''j such as settings does not change from the previous state, storing to RAM γ can be omitted.
また、中央制御装置ダウン時に、指令、設定などの情報
内容変更操作Ｃ１端末制御装置自身にあるキーボードイ
ンターフェイス１１にょ９行なうことができる。Furthermore, when the central control device is down, information content change operations such as commands and settings can be performed using the keyboard interface 11 provided in the C1 terminal control device itself.
なお、上記実施例では、中央制御装置ＦＦタウンの検知
を中央制御装置６からの十ｎ報の周期をチェックするこ
ととし、グログジム上でのいわゆるン７トタイマを利用
しているが、ハードウェアで構成したタイマを用いても
よく、上記実施例と同様の効果を奏する。In the above embodiment, the central control unit FF Town is detected by checking the cycle of the tenth report from the central control unit 6, and using a so-called N7 timer on the Glog Jim. The configured timer may also be used, and the same effects as in the above embodiment can be achieved.
また、端末制御装置に中央制御装置監視機能があるが、
これは中央制御装置との情報入出力装置で兼用すること
ができ、さらに、端末制御装置内で空調冷凍装置の制御
演算機能をもっているため、この重複する機能は中央演
算制御装置内では不要であｐ１端末制御装置内での指令
設定情報入力機能は分散された現場でのキー操作として
は、従来の分散形制御装置でも必要である。In addition, the terminal control device has a central control device monitoring function,
This can be used as an information input/output device for the central control unit, and it also has the control calculation function for the air conditioning and refrigeration equipment within the terminal control unit, so this redundant function is not necessary within the central control unit. The function of inputting command setting information within the p1 terminal control device is necessary even in conventional distributed control devices as a key operation in a distributed field.
したがって、この発明の一実施例である分散形制御装置
全体は従来のバンクアップ用制御装置を除いた全体とコ
スト的にほとんど変わらない。Therefore, the entire distributed control device according to an embodiment of the present invention is almost the same in cost as the entire distributed control device excluding the conventional bank-up control device.
以上のように、この発明の空調冷凍装置の分散形制御装
置によれば、各端末制御装置で中央演算装置の監視を行
々い、中央制御装置ダウン時は端末制御装置単独で空調
冷凍装置の制御を継続し、外部にも警報を出すので、中
央制御装置のバンクアップ用制御装置を必要とせず、コ
スト的にも従来とはほとんど変わらずにシステムとして
の運転を継続することができるという効果がある。As described above, according to the distributed control device for air conditioning and refrigeration equipment of the present invention, each terminal control device monitors the central processing unit, and when the central control device is down, the terminal control device alone controls the air conditioning and refrigeration equipment. Since control continues and an alarm is issued to the outside, there is no need for a bank-up control device for the central control unit, and the system can continue to operate with almost no change in cost compared to conventional systems. There is.
第１図は従来の空調冷凍装置の分散形制御装置全体を示
すブロック図。第２図はこの発明の空調冷凍装置の分散
形制御装置の一実施例の全体を示すブロック図。第３図
はこの発明の空調冷凍装置の分散形制御装置における端
末制御装置内の構成を示すブロック図。第４図は第３図
の端末制御装置の動作の流れを示すフローチャート図で
ある。
１・・・中央制御装置、２．２ａ〜２ｅ・・・端末制御
装置、４・・・伝送線、５ａ〜５ｅ・・・負荷、６・・
・中央演算装置、γ・・ＲＡＭ、８・・・ＲＯＭ、９・
インターフェイス、１０・・・変復調装置、１１・・・
キーボードインターフェイス、１２・・・Ａ／ｌＤ変換
器、１３・・・出力インターフェイス、１４・・・入出
力インク−フェイス
なお、図中同一符号は同一または相当部分を示す。
代理人 大 岩 増 雄（外２名）
ｔａ
矛 ！！ 図
！［Ｆ］―FIG. 1 is a block diagram showing an entire conventional distributed control device for an air conditioning refrigeration system. FIG. 2 is a block diagram showing an entire embodiment of a distributed control device for an air conditioning refrigeration system according to the present invention. FIG. 3 is a block diagram showing the internal configuration of the terminal control device in the distributed control device for air conditioning and refrigeration equipment of the present invention. FIG. 4 is a flowchart showing the operation flow of the terminal control device of FIG. 3. DESCRIPTION OF SYMBOLS 1... Central control device, 2.2a-2e... Terminal control device, 4... Transmission line, 5a-5e... Load, 6...
・Central processing unit, γ...RAM, 8...ROM, 9...
Interface, 10... Modulation/demodulation device, 11...
Keyboard interface, 12... A/ID converter, 13... Output interface, 14... Input/output ink-face Note that the same reference numerals in the drawings indicate the same or equivalent parts. Agent: Masuo Oiwa (2 others) ta yaku! ! figure! [F]-
Claims (1)
御する中央制御装置とからなる空調冷凍装置の分散制御
装置において、各端末制御装置に中央制御装置の動作を
監視する監視制御部と中央制御装置からの情報を監視制
御部から入力して記憶するとともに、端末制御装置自身
で情報を入力し記憶する第１の記憶部と、負荷の制御プ
ログラムを記憶する第２の記憶部と、これらの記憶部の
内容によシ空調冷凍装置を制御する制御部と、外部へ警
報を出す出力部とを有し、中央制御装置ダウンの検知を
上記監視制御部が行なうと端末制御装置単独で空調冷凍
装置の制御を継続し、上記警報を出す出力部よυ中央制
御装置ダウンの警報を出すことを特徴とする空調冷凍装
置の分散形制御装置。In a distributed control device for air conditioning and refrigeration equipment that includes a plurality of terminal control devices and a central control device that controls the plurality of terminal control devices, each terminal control device has a supervisory control section that monitors the operation of the central control device, and a central control device that monitors the operation of the central control device. A first storage section that inputs and stores information from the control device from a monitoring control section and also inputs and stores information from the terminal control device itself; a second storage section that stores a load control program; It has a control part that controls the air conditioning and refrigeration equipment according to the contents of the storage part, and an output part that issues an alarm to the outside. A distributed control device for an air conditioning refrigeration system, characterized in that the output unit continues to control the refrigeration system and issues the warning that the central control unit is down.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58183828A JPS6073235A (en) | 1983-09-30 | 1983-09-30 | Decentralization type control device for air-conditioning and refrigerating device |
| US06/849,367 US4674291A (en) | 1983-09-30 | 1986-04-09 | Decentralization type control apparatus for an air-conditioning or a refrigerating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58183828A JPS6073235A (en) | 1983-09-30 | 1983-09-30 | Decentralization type control device for air-conditioning and refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6073235A true JPS6073235A (en) | 1985-04-25 |
Family
ID=16142550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58183828A Pending JPS6073235A (en) | 1983-09-30 | 1983-09-30 | Decentralization type control device for air-conditioning and refrigerating device |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4674291A (en) |
| JP (1) | JPS6073235A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105402847A (en) * | 2015-10-15 | 2016-03-16 | 珠海格力电器股份有限公司 | Backup method for system data and central air conditioning unit adopting backup method |
| JPWO2016046986A1 (en) * | 2014-09-26 | 2017-04-27 | 三菱電機株式会社 | Air conditioning system |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62266348A (en) * | 1985-12-27 | 1987-11-19 | Mitsubishi Electric Corp | Air conditioner |
| JP2701911B2 (en) * | 1989-01-20 | 1998-01-21 | 株式会社日立製作所 | Control system for cooling equipment |
| US5121880A (en) * | 1990-04-05 | 1992-06-16 | Honeywell Inc. | Mode selector for a heating system controller |
| DE4238342A1 (en) * | 1992-08-26 | 1994-03-03 | Colt Int Holdings | Electronic substation as a control unit for individual devices in a system of industrial heating and ventilation technology |
| JP3102208B2 (en) * | 1993-06-30 | 2000-10-23 | ダイキン工業株式会社 | Operation control device for air conditioner |
| US5491649A (en) * | 1993-10-29 | 1996-02-13 | Carrier Corporation | Configurative control for HVAC systems |
| FR2774749B1 (en) * | 1998-02-12 | 2000-03-31 | Guillot | COLD MANAGEMENT DEVICE FOR REFRIGERATION PLANTS AND RELATED REGULATION AND MONITORING MODULES |
| US7127901B2 (en) * | 2001-07-20 | 2006-10-31 | Brooks Automation, Inc. | Helium management control system |
| KR100896996B1 (en) * | 2007-02-02 | 2009-05-14 | 엘지전자 주식회사 | Unification management system and method for multi-air conditioner |
| US8672733B2 (en) * | 2007-02-06 | 2014-03-18 | Nordyne Llc | Ventilation airflow rate control |
| US20080307803A1 (en) * | 2007-06-12 | 2008-12-18 | Nordyne Inc. | Humidity control and air conditioning |
| US7770806B2 (en) * | 2007-06-19 | 2010-08-10 | Nordyne Inc. | Temperature control in variable-capacity HVAC system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526320B2 (en) * | 1975-11-20 | 1980-07-12 | ||
| JPS57136046A (en) * | 1981-02-18 | 1982-08-21 | Hitachi Ltd | Centralized temperature controller |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212078A (en) * | 1977-12-27 | 1980-07-08 | United Technologies Corporation | Computer controlled facility management system (FMS) |
| US4381549A (en) * | 1980-10-14 | 1983-04-26 | Trane Cac, Inc. | Automatic fault diagnostic apparatus for a heat pump air conditioning system |
| US4333316A (en) * | 1980-10-14 | 1982-06-08 | General Electric Company | Automatic control apparatus for a heat pump system |
-
1983
- 1983-09-30 JP JP58183828A patent/JPS6073235A/en active Pending
-
1986
- 1986-04-09 US US06/849,367 patent/US4674291A/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526320B2 (en) * | 1975-11-20 | 1980-07-12 | ||
| JPS57136046A (en) * | 1981-02-18 | 1982-08-21 | Hitachi Ltd | Centralized temperature controller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2016046986A1 (en) * | 2014-09-26 | 2017-04-27 | 三菱電機株式会社 | Air conditioning system |
| CN105402847A (en) * | 2015-10-15 | 2016-03-16 | 珠海格力电器股份有限公司 | Backup method for system data and central air conditioning unit adopting backup method |
Also Published As
| Publication number | Publication date |
|---|---|
| US4674291A (en) | 1987-06-23 |
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